CVE 2011-2101
Adobe Reader and Acrobat 8.x before 8.3, 9.x before 9.4.5, and 10.x before 10.1 on Windows and Mac OS X do not properly restrict script, which allows attackers to execute arbitrary code via a crafted document, related to a "cross document script execution vulnerability."
See the 
CVE page on Mitre.org
for more details.
